named service suddenly fails to start

Bruce Johnson johnson at Pharmacy.Arizona.EDU
Thu Nov 4 19:27:56 UTC 2021

On Nov 4, 2021, at 12:01 PM, Bruce Johnson <johnson at<mailto:johnson at>> wrote:

This morning our server started failing to reload or start.

checking the status reveals not a lot of info:

systemctl status named-chroot
● named-chroot.service - Berkeley Internet Name Domain (DNS)
  Loaded: loaded (/usr/lib/systemd/system/named-chroot.service; enabled; vendor preset: disabled)
  Active: failed (Result: exit-code) since Thu 2021-11-04 11:55:17 MST; 27s ago
 Process: 2020 ExecStartPre=/bin/bash -c if [ ! "$DISABLE_ZONE_CHECKING" == "yes" ]; then /usr/sbin/named-checkconf -t /var/named/chroot -z "$NAMEDCONF"; else echo "Checking of zone files is disabled"; fi (code=exit>

named-checkconf -z revealed a name had been entered with underscores. The person responsible has been sacked. (not really, merely reminded no underscores are allowed in A records :-)

Does named-checkzone not check for this?

Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs

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